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1; RUN: llc -mtriple=aarch64 %s -o - | FileCheck %s2 3; The llvm.aarch64.rbit intrinsic should be auto-upgraded to the4; target-independent bitreverse intrinsic.5 6; CHECK-LABEL: rbit327; CHECK: rbit w0, w08define i32 @rbit32(i32 %t) {9entry:10 %rbit.i = call i32 @llvm.aarch64.rbit.i32(i32 %t)11 ret i32 %rbit.i12}13 14; CHECK-LABEL: rbit6415; CHECK: rbit x0, x016define i64 @rbit64(i64 %t) {17entry:18 %rbit.i = call i64 @llvm.aarch64.rbit.i64(i64 %t)19 ret i64 %rbit.i20}21 22declare i64 @llvm.aarch64.rbit.i64(i64)23declare i32 @llvm.aarch64.rbit.i32(i32)24 25; CHECK-LABEL: rbit_generic3226; CHECK: rbit w0, w027define i32 @rbit_generic32(i32 %t) {28entry:29 %rbit = call i32 @llvm.bitreverse.i32(i32 %t)30 ret i32 %rbit31}32 33; CHECK-LABEL: rbit_generic6434; CHECK: rbit x0, x035define i64 @rbit_generic64(i64 %t) {36entry:37 %rbit = call i64 @llvm.bitreverse.i64(i64 %t)38 ret i64 %rbit39}40 41declare i32 @llvm.bitreverse.i32(i32) readnone42declare i64 @llvm.bitreverse.i64(i64) readnone43